Home / 121,515.04-167,698.24-67,800.16

Finding the Fourth Proportional to 121,515.04, 167,698.24 and 67,800.16

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Solution

The fourth proportional to 121,515.04, 167,698.24 and 67,800.16 is: 93,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515.04 : 167,698.24 = 67,800.16 : x
  2. Step 2: Convert to fraction form
    121,515.04/167,698.24 = 67,800.16/x
  3. Step 3: Cross multiply
    121,515.04x = 167,698.24 × 67,800.16
  4. Step 4: Simplify right side
    121,515.04x = 11,369,967,503.72
  5. Step 5: Solve for x
    x = 11,369,967,503.72/121,515.04
  6. Step 6: Final answer
    x = 93,568.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.